20 clues for "ESSES":
- Double curves.
- Curves
- Highway curves
- Letters.
- Mississippi has four.
- Road curves
- Sigmas.
- Sigmoid letters
- Sigmoids
- 'Sissy,' mostly
- Tongue-twister trouble spots, often
- Ars' followers
- Curves in the road.
- Feminine endings
- Feminine suffix.
- Mountain-road winders
- Sibilant letters
- Sibilants
- Sigmoid curves.
- Twisting curves.